From: Sergio Gonzalez Monroy <sergio.gonzalez.monroy@intel.com>
To: dev@dpdk.org
Subject: [dpdk-dev] [PATCH] igb: handle VF LPE mailbox message
Date: Wed, 18 Mar 2015 12:01:31 +0000 [thread overview]
Message-ID: <1426680091-26328-1-git-send-email-sergio.gonzalez.monroy@intel.com> (raw)
This patch adds the handle function for the LPE mailbox message (VF to
PF) to set maximum packet size, which can be used to enable jumbo
frame support.
Signed-off-by: Sergio Gonzalez Monroy <sergio.gonzalez.monroy@intel.com>
---
lib/librte_pmd_e1000/igb_pf.c | 28 ++++++++++++++++++++++++++++
1 file changed, 28 insertions(+)
diff --git a/lib/librte_pmd_e1000/igb_pf.c b/lib/librte_pmd_e1000/igb_pf.c
index bc3816a..2d49379 100644
--- a/lib/librte_pmd_e1000/igb_pf.c
+++ b/lib/librte_pmd_e1000/igb_pf.c
@@ -395,6 +395,31 @@ igb_vf_set_vlan(struct rte_eth_dev *dev, uint32_t vf, uint32_t *msgbuf)
}
static int
+igb_vf_set_rlpml(struct rte_eth_dev *dev, uint32_t vf, uint32_t *msgbuf)
+{
+ struct e1000_hw *hw = E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+ uint16_t rlpml = msgbuf[1] & E1000_VMOLR_RLPML_MASK;
+ uint32_t max_frame = rlpml + ETHER_HDR_LEN + ETHER_CRC_LEN;
+ uint32_t vmolr;
+
+ if ((max_frame < ETHER_MIN_LEN) || (max_frame > ETHER_MAX_JUMBO_FRAME_LEN))
+ return -1;
+
+ vmolr = E1000_READ_REG(hw, E1000_VMOLR(vf));
+
+ vmolr &= ~E1000_VMOLR_RLPML_MASK;
+ vmolr |= rlpml;
+
+ /* Enable Long Packet support */
+ vmolr |= E1000_VMOLR_LPE;
+
+ E1000_WRITE_REG(hw, E1000_VMOLR(vf), vmolr);
+ E1000_WRITE_FLUSH(hw);
+
+ return 0;
+}
+
+static int
igb_rcv_msg_from_vf(struct rte_eth_dev *dev, uint16_t vf)
{
uint16_t mbx_size = E1000_VFMAILBOX_SIZE;
@@ -428,6 +453,9 @@ igb_rcv_msg_from_vf(struct rte_eth_dev *dev, uint16_t vf)
case E1000_VF_SET_MULTICAST:
retval = igb_vf_set_multicast(dev, vf, msgbuf);
break;
+ case E1000_VF_SET_LPE:
+ retval = igb_vf_set_rlpml(dev, vf, msgbuf);
+ break;
case E1000_VF_SET_VLAN:
retval = igb_vf_set_vlan(dev, vf, msgbuf);
break;
--
1.9.3
next reply other threads:[~2015-03-18 12:01 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-03-18 12:01 Sergio Gonzalez Monroy [this message]
2015-03-18 12:04 ` Gonzalez Monroy, Sergio
2015-03-18 16:01 ` Ananyev, Konstantin
2015-04-28 16:19 ` Thomas Monjalon
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